/Engine/Source/Runtime/Engine/Classes/Materials/Material.h
Get all referenced expressions (returns the chains for all properties).
bool true if successful, false if not.
virtual bool GetAllReferencedExpressions ( [TArray](API\Runtime\Core\Containers\TArray)< [UMaterialExpression](API\Runtime\Engine\Materials\UMaterialExpression) * > & OutExpressions, struct [FStaticParameterSet](API\Runtime\Engine\FStaticParameterSet) * InStaticParameterSet, [ERHIFeatureLevel::Type](API\Runtime\RHI\ERHIFeatureLevel__Type) InFeatureLevel, [EMaterialQualityLevel::Type](API\Runtime\Engine\EMaterialQualityLevel__Type) InQuality, [ERHIShadingPath::Type](API\Runtime\RHI\ERHIShadingPath__Type) InShadingPath, const bool bInRecurseIntoMaterialFunctions )